Game data and save data is stored in SD:\Nintendo 3DS\<ID0>\<ID1>\title\TitleID High\TitleID Low\If i wanted to back up a particular CIA game, it's installed DLC and even it's savegames and extdata, but not the entire mSD card, what part of the card should i backup?
Game data and save data is stored in SD:\Nintendo 3DS\<ID0>\<ID1>\title\TitleID High\TitleID Low\
TitleID High being the first 8 characters of the title ID, and TitleID Low being the last 8 characters.
DLC has a separate title ID and is therefore stored in a separate directory.
Also, forgot to mention, extdata is stored in SD:\Nintendo 3DS\<ID0>\<ID1>\extdata\00000000\ but I don't think they have the folders simply named after the title ID like game data/save data does. This page might provide some more insight: https://www.3dbrew.org/wiki/ExtdataDamn that is actually really helpful. Thank you.